[17/45] target/riscv: Add vaesef.vv decoding, translation and execution support

Message ID	20230310091215.931644-18-lawrence.hunter@codethink.co.uk (mailing list archive)
State	New, archived
Headers	show Return-Path: <kvm-owner@vger.kernel.org> From: Lawrence Hunter <lawrence.hunter@codethink.co.uk> To: qemu-devel@nongnu.org Cc: dickon.hood@codethink.co.uk, nazar.kazakov@codethink.co.uk, kiran.ostrolenk@codethink.co.uk, frank.chang@sifive.com, palmer@dabbelt.com, alistair.francis@wdc.com, bin.meng@windriver.com, pbonzini@redhat.com, philipp.tomsich@vrull.eu, kvm@vger.kernel.org, Lawrence Hunter <lawrence.hunter@codethink.co.uk> Subject: [PATCH 17/45] target/riscv: Add vaesef.vv decoding, translation and execution support Date: Fri, 10 Mar 2023 09:11:47 +0000 Message-Id: <20230310091215.931644-18-lawrence.hunter@codethink.co.uk> In-Reply-To: <20230310091215.931644-1-lawrence.hunter@codethink.co.uk> References: <20230310091215.931644-1-lawrence.hunter@codethink.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk
Series	Add RISC-V vector cryptographic instruction set support \| expand [00/45] Add RISC-V vector cryptographic instruction set support [01/45] target/riscv: Add zvkb cpu property [02/45] target/riscv: Refactor some of the generic vector functionality [03/45] target/riscv: Add vclmul.vv decoding, translation and execution support [04/45] target/riscv: Refactor some of the generic vector functionality [05/45] target/riscv: Add vclmul.vx decoding, translation and execution support [06/45] target/riscv: Add vclmulh.vv decoding, translation and execution support [07/45] target/riscv: Add vclmulh.vx decoding, translation and execution support [08/45] target/riscv: Refactor some of the generic vector functionality [09/45] qemu/bitops.h: Limit rotate amounts [10/45] target/riscv: Add vrol.[vv,vx] and vror.[vv,vx,vi] decoding, translation and execution supp… [11/45] target/riscv: Refactor some of the generic vector functionality [12/45] target/riscv: Add vbrev8.v decoding, translation and execution support [13/45] target/riscv: Add vrev8.v decoding, translation and execution support [14/45] target/riscv: Add vandn.[vv,vx] decoding, translation and execution support [15/45] target/riscv: Expose zvkb cpu property [16/45] target/riscv: Add zvkned cpu property [17/45] target/riscv: Add vaesef.vv decoding, translation and execution support [18/45] target/riscv: Add vaesef.vs decoding, translation and execution support [19/45] target/riscv: Add vaesdf.vv decoding, translation and execution support [20/45] target/riscv: Add vaesdf.vs decoding, translation and execution support [21/45] target/riscv: Add vaesdm.vv decoding, translation and execution support [22/45] target/riscv: Add vaesdm.vs decoding, translation and execution support [23/45] target/riscv: Add vaesz.vs decoding, translation and execution support [24/45] target/riscv: Add vaesem.vv decoding, translation and execution support [25/45] target/riscv: Add vaesem.vs decoding, translation and execution support [26/45] target/riscv: Add vaeskf1.vi decoding, translation and execution support [27/45] target/riscv: Add vaeskf2.vi decoding, translation and execution support [28/45] target/riscv: Expose zvkned cpu property [29/45] target/riscv: Add zvknh cpu properties [30/45] target/riscv: Add vsha2ms.vv decoding, translation and execution support [31/45] target/riscv: Add vsha2c[hl].vv decoding, translation and execution support [32/45] target/riscv: Expose zvknh cpu properties [33/45] target/riscv: Add zvksh cpu property [34/45] target/riscv: Add vsm3me.vv decoding, translation and execution support [35/45] target/riscv: Add vsm3c.vi decoding, translation and execution support [36/45] target/riscv: Expose zvksh cpu property [37/45] target/riscv: Add zvkg cpu property [38/45] target/riscv: Add vgmul.vv decoding, translation and execution support [39/45] target/riscv: Add vghsh.vv decoding, translation and execution support [40/45] target/riscv: Expose zvkg cpu property [41/45] crypto: Create sm4_subword [42/45] crypto: Add SM4 constant parameter CK [43/45] target/riscv: Add zvksed cfg property [44/45] target/riscv: Add Zvksed support [45/45] target/riscv: Expose Zvksed property

diff --git a/target/riscv/helper.h b/target/riscv/helper.h index 1bc10ca5be..a402bb5d40 100644 --- a/target/riscv/helper.h +++ b/target/riscv/helper.h @@ -1,5 +1,6 @@ /* Exceptions */ DEF_HELPER_2(raise_exception, noreturn, env, i32) +DEF_HELPER_2(restore_cpu_and_raise_exception, noreturn, env, i32) /* Floating Point - rounding mode */ DEF_HELPER_FLAGS_2(set_rounding_mode, TCG_CALL_NO_WG, void, env, i32) @@ -1186,3 +1187,5 @@ DEF_HELPER_6(vandn_vx_b, void, ptr, ptr, tl, ptr, env, i32) DEF_HELPER_6(vandn_vx_h, void, ptr, ptr, tl, ptr, env, i32) DEF_HELPER_6(vandn_vx_w, void, ptr, ptr, tl, ptr, env, i32) DEF_HELPER_6(vandn_vx_d, void, ptr, ptr, tl, ptr, env, i32) + +DEF_HELPER_4(vaesef_vv, void, ptr, ptr, env, i32) diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode index bbf128e4dc..f68025755a 100644 --- a/target/riscv/insn32.decode +++ b/target/riscv/insn32.decode @@ -75,6 +75,7 @@ @r_rm ....... ..... ..... ... ..... ....... %rs2 %rs1 %rm %rd @r2_rm ....... ..... ..... ... ..... ....... %rs1 %rm %rd @r2 ....... ..... ..... ... ..... ....... &r2 %rs1 %rd +@r2_vm_1 ...... . ..... ..... ... ..... ....... &rmr vm=1 %rs2 %rd @r2_nfvm ... ... vm:1 ..... ..... ... ..... ....... &r2nfvm %nf %rs1 %rd @r2_vm ...... vm:1 ..... ..... ... ..... ....... &rmr %rs2 %rd @r1_vm ...... vm:1 ..... ..... ... ..... ....... %rd @@ -925,3 +926,6 @@ vbrev8_v 010010 . ..... 01000 010 ..... 1010111 @r2_vm vrev8_v 010010 . ..... 01001 010 ..... 1010111 @r2_vm vandn_vv 000001 . ..... ..... 000 ..... 1010111 @r_vm vandn_vx 000001 . ..... ..... 100 ..... 1010111 @r_vm + +# *** RV64 Zvkned vector crypto extension *** +vaesef_vv 101000 1 ..... 00011 010 ..... 1110111 @r2_vm_1 diff --git a/target/riscv/insn_trans/trans_rvzvkned.c.inc b/target/riscv/insn_trans/trans_rvzvkned.c.inc new file mode 100644 index 0000000000..6f3d62bef1 --- /dev/null +++ b/target/riscv/insn_trans/trans_rvzvkned.c.inc @@ -0,0 +1,72 @@ +/* + * RISC-V translation routines for the Zvkned Extension. + * + * Copyright (C) 2023 SiFive, Inc. + * Written by Codethink Ltd and SiFive. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2 or later, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ +#define GEN_V_UNMASKED_TRANS(NAME, CHECK) \ +static bool trans_##NAME(DisasContext *s, arg_##NAME * a) \ +{ \ + if (CHECK(s, a)) { \ + TCGv_ptr rd_v, rs2_v; \ + TCGv_i32 desc; \ + uint32_t data = 0; \ + TCGLabel *over = gen_new_label(); \ + TCGLabel *vl_ok = gen_new_label(); \ + TCGv_i32 tmp = tcg_temp_new_i32(); \ + \ + /* save opcode for unwinding in case we throw an exception */ \ + decode_save_opc(s); \ + \ + /* check (vl % 4 == 0) */ \ + tcg_gen_trunc_tl_i32(tmp, cpu_vl); \ + tcg_gen_andi_i32(tmp, tmp, 0b11); \ + tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, vl_ok); \ + gen_helper_restore_cpu_and_raise_exception(cpu_env, \ + tcg_constant_i32(RISCV_EXCP_ILLEGAL_INST)); \ + gen_set_label(vl_ok); \ + \ + tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); \ + data = FIELD_DP32(data, VDATA, VM, a->vm); \ + data = FIELD_DP32(data, VDATA, LMUL, s->lmul); \ + data = FIELD_DP32(data, VDATA, VTA, s->vta); \ + data = FIELD_DP32(data, VDATA, VTA_ALL_1S, s->cfg_vta_all_1s); \ + data = FIELD_DP32(data, VDATA, VMA, s->vma); \ + rd_v = tcg_temp_new_ptr(); \ + rs2_v = tcg_temp_new_ptr(); \ + desc = tcg_constant_i32(simd_desc(s->cfg_ptr->vlen / 8, \ + s->cfg_ptr->vlen / 8, data)); \ + tcg_gen_addi_ptr(rd_v, cpu_env, vreg_ofs(s, a->rd)); \ + tcg_gen_addi_ptr(rs2_v, cpu_env, vreg_ofs(s, a->rs2)); \ + gen_helper_##NAME(rd_v, rs2_v, cpu_env, desc); \ + mark_vs_dirty(s); \ + gen_set_label(over); \ + return true; \ + } \ + return false; \ +} + + +static bool vaes_check_vv(DisasContext *s, arg_rmr *a) +{ + return s->cfg_ptr->ext_zvkned == true && + require_rvv(s) && + vext_check_isa_ill(s) && + MAXSZ(s) >= (128 / 8) && /* EGW in bytes */ + require_align(a->rd, s->lmul) && + require_align(a->rs2, s->lmul) && + s->vstart % 4 == 0 && s->sew == MO_32; +} +GEN_V_UNMASKED_TRANS(vaesef_vv, vaes_check_vv) diff --git a/target/riscv/op_helper.c b/target/riscv/op_helper.c index 84ee018f7d..f26c6396a5 100644 --- a/target/riscv/op_helper.c +++ b/target/riscv/op_helper.c @@ -38,6 +38,11 @@ void helper_raise_exception(CPURISCVState *env, uint32_t exception) riscv_raise_exception(env, exception, 0); } +void helper_restore_cpu_and_raise_exception(CPURISCVState *env, uint32_t exception) +{ + riscv_raise_exception(env, exception, GETPC()); +} + target_ulong helper_csrr(CPURISCVState *env, int csr) { /* diff --git a/target/riscv/translate.c b/target/riscv/translate.c index 939f5aeb1c..e3561b0bbd 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -1084,6 +1084,7 @@ static uint32_t opcode_at(DisasContextBase *dcbase, target_ulong pc) #include "insn_trans/trans_rvzfh.c.inc" #include "insn_trans/trans_rvk.c.inc" #include "insn_trans/trans_rvzvkb.c.inc" +#include "insn_trans/trans_rvzvkned.c.inc" #include "insn_trans/trans_privileged.c.inc" #include "insn_trans/trans_svinval.c.inc" #include "decode-xthead.c.inc" diff --git a/target/riscv/vcrypto_helper.c b/target/riscv/vcrypto_helper.c index 7d2a355418..bb5ce5b50a 100644 --- a/target/riscv/vcrypto_helper.c +++ b/target/riscv/vcrypto_helper.c @@ -22,6 +22,7 @@ #include "qemu/bitops.h" #include "qemu/bswap.h" #include "cpu.h" +#include "crypto/aes.h" #include "exec/memop.h" #include "exec/exec-all.h" #include "exec/helper-proto.h" @@ -144,3 +145,75 @@ GEN_VEXT_VX(vandn_vx_b, 1) GEN_VEXT_VX(vandn_vx_h, 2) GEN_VEXT_VX(vandn_vx_w, 4) GEN_VEXT_VX(vandn_vx_d, 8) + +static inline void aes_sub_bytes(uint8_t round_state[4][4]) +{ + for (int j = 0; j < 16; j++) { + round_state[j / 4][j % 4] = AES_sbox[round_state[j / 4][j % 4]]; + } +} + +static inline void aes_shift_bytes(uint8_t round_state[4][4]) +{ + uint8_t temp; + temp = round_state[0][1]; + round_state[0][1] = round_state[1][1]; + round_state[1][1] = round_state[2][1]; + round_state[2][1] = round_state[3][1]; + round_state[3][1] = temp; + temp = round_state[0][2]; + round_state[0][2] = round_state[2][2]; + round_state[2][2] = temp; + temp = round_state[1][2]; + round_state[1][2] = round_state[3][2]; + round_state[3][2] = temp; + temp = round_state[0][3]; + round_state[0][3] = round_state[3][3]; + round_state[3][3] = round_state[2][3]; + round_state[2][3] = round_state[1][3]; + round_state[1][3] = temp; +} + +static inline void xor_round_key(uint8_t round_state[4][4], uint8_t *round_key) +{ + for (int j = 0; j < 16; j++) { + round_state[j / 4][j % 4] = round_state[j / 4][j % 4] ^ (round_key)[j]; + } +} + +#define GEN_ZVKNED_HELPER_VV(NAME, ...) \ +void HELPER(NAME)(void *vd_vptr, void *vs2_vptr, CPURISCVState *env, \ + uint32_t desc) \ +{ \ + uint64_t *vd = vd_vptr; \ + uint64_t *vs2 = vs2_vptr; \ + uint32_t vl = env->vl; \ + uint32_t total_elems = vext_get_total_elems(env, desc, 4); \ + uint32_t vta = vext_vta(desc); \ + \ + for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { \ + uint64_t round_key[2] = { \ + cpu_to_le64(vs2[i * 2 + 0]), \ + cpu_to_le64(vs2[i * 2 + 1]), \ + }; \ + uint8_t round_state[4][4]; \ + cpu_to_le64s(vd + i * 2 + 0); \ + cpu_to_le64s(vd + i * 2 + 1); \ + for (int j = 0; j < 16; j++) { \ + round_state[j / 4][j % 4] = ((uint8_t *)(vd + i * 2))[j]; \ + } \ + __VA_ARGS__; \ + for (int j = 0; j < 16; j++) { \ + ((uint8_t *)(vd + i * 2))[j] = round_state[j / 4][j % 4]; \ + } \ + le64_to_cpus(vd + i * 2 + 0); \ + le64_to_cpus(vd + i * 2 + 1); \ + } \ + env->vstart = 0; \ + /* set tail elements to 1s */ \ + vext_set_elems_1s(vd, vta, vl * 4, total_elems * 4); \ +} + +GEN_ZVKNED_HELPER_VV(vaesef_vv, aes_sub_bytes(round_state); + aes_shift_bytes(round_state); + xor_round_key(round_state, (uint8_t *)round_key);)

[17/45] target/riscv: Add vaesef.vv decoding, translation and execution support

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